41636666 has 4 divisors (see below), whose sum is σ = 62455002. Its totient is φ = 20818332.

The previous prime is 41636611. The next prime is 41636669. The reversal of 41636666 is 66663614.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 32205625 + 9431041 = 5675^2 + 3071^2 .

It is a super-2 number, since 2×41636666² = 3467223911191112, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (41636669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10409165 + ... + 10409168.

Almost surely, 2^41636666 is an apocalyptic number.

41636666 is a deficient number, since it is larger than the sum of its proper divisors (20818336).

41636666 is a wasteful number, since it uses less digits than its factorization.

41636666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20818335.

The product of its digits is 93312, while the sum is 38.

The square root of 41636666 is about 6452.6479835801. The cubic root of 41636666 is about 346.5974119957.

The spelling of 41636666 in words is "forty-one million, six hundred thirty-six thousand, six hundred sixty-six".